Hi,
I've played FO3 and NV and one of the most irritating things imo, in those games is how the gauss rifle that supposedly shoot projectiles is classified as an energy weapon. It doesn't seem and look right to me.
Yes I know guns technically use gunpowder, not magnets or other techblablabla.
My suggestions is to change the weapon class of "Guns" to "Kinetic Weapons" and put the gauss rifle back where it belongs. Make railgun or mass warping magic projectile weapon(like mass effect) a high end Kinetic Weapon just as the Tesla Cannon is a high end Energy Weapons. I love kinetics. It's the most effective forms of energy for destroying stuff (even planets) with sufficient speed.
So in the end, have "Kinetic Weapons", "Energy Weapons" and "Explosives" as the main options for ranged combat.
Just a suggestion.